From: Stephen Hemminger <shemminger@osdl.org>
To: Douglas Leith <doug.leith@nuim.ie>, Sangtae Ha <sha2@ncsu.edu>
Cc: netdev@vger.kernel.org
Subject: TCP congestion graphs
Date: Wed, 25 Oct 2006 11:02:07 -0700 [thread overview]
Message-ID: <20061025110207.78d38779@freekitty> (raw)
I ran some congestion window tests against 2.6.19-rc3.
For congestion window graphs see:
http://developer.osdl.org/shemminger/tcp/2.6.19-rc3/
The connection was a single flow with a 500ms RTT and a
100Mbit slowest link speed.
BIC OK
CUBIC OK (after patch)
HIGHSPEED BROKEN?
HTCP OK
RENO OK (massive overshoot)
SCALEABLE OK
VEGAS OK (no better than Reno)
VENO Same as Reno?
WESTWOOD Overshoot then low window
Highspeed has something wrong (test glitch?)
Westwood behaves poorly
Veno seems no better than either Reno or Vegas in this
case.
The end systems were from latest git. The netem bridge is using
2.6.18-rt with a patch to netem to use hrtimers. iperf was modified
to allow easy selection of congestion control.
--
Stephen Hemminger <shemminger@osdl.org>
next reply other threads:[~2006-10-25 22:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-25 18:02 Stephen Hemminger [this message]
2006-10-25 22:34 ` TCP congestion graphs Injong Rhee
2006-10-26 1:30 ` Stephen Hemminger
2006-10-26 18:50 ` Hagen Paul Pfeifer
2006-10-26 19:36 ` Stephen Hemminger
2006-10-31 20:00 ` TCP congestion graphs (2.6.19-rc4) Stephen Hemminger
2006-10-31 23:25 ` Xiaoliang (David) Wei
2006-11-01 0:10 ` Stephen Hemminger
2006-11-01 1:30 ` David Miller
2006-11-01 5:25 ` Evgeniy Polyakov
2006-11-01 5:58 ` Stephen Hemminger
2006-11-02 5:44 ` David Miller
2006-11-02 19:58 ` Stephen Hemminger
2006-11-28 22:38 ` David Miller
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